For COA, specification, pricing and documentation requests — we typically respond within 24–48 hours.
Email: info@glpionapi.com
Phone: +86 155 7009 7870 · +86 173 6622 2224
Office: Building 12, Willow Bay Park, No. 1 GuangHua East Street, QinHuai District, Nanjing, China
Business hours: Mon–Fri 9:00–18:00 (UTC+8); messages answered within 24h